diff --git a/.github/skills/notebooklm-experts/requirements.txt b/.github/skills/notebooklm-experts/requirements.txt
index 3db0554..ac1a9cd 100644
--- a/.github/skills/notebooklm-experts/requirements.txt
+++ b/.github/skills/notebooklm-experts/requirements.txt
@@ -7,4 +7,4 @@
 patchright==1.55.2
 
 # Environment management
-python-dotenv==1.0.0
+python-dotenv==1.2.2
diff --git a/.github/workflows/ci-standards-compliance.yml b/.github/workflows/ci-standards-compliance.yml
index c99bc67..2b78dbf 100644
--- a/.github/workflows/ci-standards-compliance.yml
+++ b/.github/workflows/ci-standards-compliance.yml
@@ -314,7 +314,7 @@ jobs:
           else
             echo "✅ No unused symbols detected"
           fi
-        continue-on-error: true  # Phase-in: surface findings without blocking yet
+        continue-on-error: false  # Phase-in: surface findings without blocking yet
 
       # Test 6: Magic number detection — handled by ssot-magic-numbers-gate job (closes #305)
       # Verifies: #252 (TEST-MAINTAIN-001 step 6) — see ssot-magic-numbers-gate below